Doing ruby dev in a VM is pretty nice for some things, and terrible for others. In general, I think VM's are great if you have a team and need to get environmen

Doing ruby dev in a VM is pretty nice for some things, and terrible for others. In general, I think VM's are great if you have a team and need to get environments setup that work on any machine (windows/mac/linux). Where it falls flat is in some weird places like if you want to use Guard for automatic file change actions. Otherwise, it's pretty awesome. If I'm working on my own projects tho, running ruby local on OS X is the way to go. Much less overhead.